Do I need a separate field flattener for the Askar 130PHQ?
No. The Askar 130PHQ is a flat-field astrograph with a built-in corrector lens as part of its quadruplet optical design. It produces a corrected 60mm image circle without any additional accessories, simplifying your imaging setup.
What size camera sensor can the Askar 130PHQ fully illuminate?
The 60mm image circle is large enough to cover full-frame sensors (like those in DSLRs or dedicated cameras such as the ZWO ASI6200) and even some medium-format sensors with excellent correction to the corners.
What kind of equatorial mount is required to use the Askar 130PHQ for astrophotography?
With a total weight of 13kg (28.7 lbs) for the optical tube, rings, and dovetail, plus the additional weight of a guide scope, camera, and other accessories, a mount in the EQ6/CEM60 class or larger is strongly recommended for stable, long-exposure imaging.
How does the 1000mm focal length of the Askar 130PHQ affect imaging the Triangulum Galaxy (M33)?
The 1000mm focal length provides excellent image scale for capturing details within M33, such as its spiral arms and HII regions. When paired with a full-frame sensor, you can frame the entire galaxy comfortably, while a smaller APS-C sensor will provide a tighter, more magnified view of its core.
How do I connect my ZWO camera with an M42 thread to the Askar 130PHQ?
The Askar 130PHQ includes a set of adapters that terminate in a standard M48x0.75 male thread. To connect a camera with an M42 "T-thread," you will need a simple M48-to-M42 step-down ring, which is a common and widely available accessory.
Is the Askar 130PHQ suitable for visual observation?
While optimized for imaging, the 130PHQ is an excellent visual instrument. Its 130mm APO objective provides sharp, color-free views of the Moon, planets, and bright deep-sky objects. You will need to add a diagonal and eyepieces to use it visually.
